how to takes screenshot on mac

You might occasionally need to capture the
image on your computer screen so you can
save or share it. If you've used a PC designed
to run Microsoft Windows, you've probably
used the Print Screen key on the keyboard to
do this. If you're using a Mac, though, you'll
notice Apple doesn't include such a key. Don't
worry, though, because we're about to look at
the keyboard combinations and built-in tools
you can use on your Mac to capture what you
need from the screen.
First, let's look at the keyboard combinations
you can use to capture the image on your
screen. The keystrokes for screenshots are
multiple keys that should be pressed together.
When you do this, press and hold the first key,
then the second, and so forth, and immediately
release all keys after pressing the final one in
the sequence. The following are the keystrokes
to remember for screen capturing:
Command+Shift+3 captures the entire screen
and saves it to a file on your desktop.
Command+Shift+4 temporarily replaces your
mouse cursor with a tool to select any
rectangular portion of the screen. Click and
drag the tool to make your selection. Your
cursor immediately returns to normal after
that selection.
Control added to the start of either of these
sequences saves the image to the clipboard
temporarily instead of to a permanent file.
That allows you to copy and paste what you
see on the screen into an application, such as
image editing software.
If you don't use the Control key, your Mac
saves these keystroke captures to your desktop
by default. When you're capturing images this
way, you won't see any system or app
notifications to verify success. Instead, the
system just plays a chime that sounds like a
film camera snapping a photo. To see the files
you're saving, you'll have to either open your
Finder or minimize your windows to find the
images saved on the desktop.
Mac OS X traditionally saved keyboard-
generated screenshots as tagged image file
format (TIFF) files. Macs switched to portable
document format (PDF) starting in the 10.2
release of OS X, and to portable network
graphics (PNG) files by 10.6. Later, we'll look
at how you can convert any of these images to
other file formats.
While keystrokes let you get a quick capture
from the screen, they have limited options for
what you're capturing. That's where the Grab
utility comes in. Next, let's take a look at how
to use Grab, including how to capture a
specific window and how to time the capture
to include things like mouse-over text or drop-
down menus.

HOW TO REMOVE BLOGGER TITLE

A Blogger.com blog, by default, has two items
at the top of every blog: an address bar and a
header, or title, of the blog. Removing these
bars can give your blog a look that stands out
from the crowd. You cannot remove either of
these bars using the basic Blogger design
editor, but if you access the underlying HTML
code, you can manipulate almost anything on
the page. Removing the address bar is a simple
process of just adding some code. Removing
the page's header is a little tricky, as Blogger
will try to put the header back if you remove
it.

Instructions
1
Visit the Blogger website to access your
blog dashboard. Click the "Design"
button next to the blog that you want to
alter.
2
Click "Edit HTML" from the options at
the top of the design page. This will
bring up a large text box that is filled
with the HTML code for your blog.
3
Scroll down a few lines in the text box
until you see the "/* Variable
definitions" entry. Click on the empty
line just above this and enter the
following code:
#navbar-iframe {display: none !
important;}
This code will remove the navigation bar
from the top of your blog. Click the
"Save Template" button at the bottom of
the screen to save your changes.
4
Press "Ctrl" and "F" to bring up a search
box in your browser. Type "widget
id='header1" (without quotes) into the
search box and press "Enter." The code
in the text box will jump to the
requested line in the code.
5
Look at the line of code directly above
the one you just found for the
"maxwidgets" entry. Change the "1"
next to "maxwidgets" to a "2." Click
"Save Template" to save your changes.
6
Click the "Page Elements" option at the
top of the screen to bring up the design
elements of your blog. Click the "Add a
Gadget" option located directly above
your header bar. Click the "+" next to
"Follow by Email" in the window that
appears and click "Save" in the
confirmation window. Click "Edit HTML"
at the top of the screen to go back to
your HTML editor.
7
Search for "widget id='header" again
and erase the entire line that includes
this piece of code. The line will start
with "<b:widget" and end with
"type='header'/>." Remove the line
directly above this one as well. The
second line starts with "<b:widget" and
ends with "type='FollowByEmail'/>." By
adding the extra widget to the top of
the page and then removing it, Blogger
will no longer replace the header bar
widget when you delete it.
8
Click "Save Template" just below the
text box to save your changes. A
warning box will appear at the top of
the page, asking you whether you are
sure that you want to remove the
header widget. Click "Delete Widgets" to
continue. Click "View Blog" at the top of
the screen to see your blog without the
navigation and header bars.